Jar-closure.



G. LEE & J. M. DUTHIE. I JAR CLOSURE. APPLICATION FILED SEPT. 10, 19.09.

aka m1;

ms NORRIS PETERS cc., WASHINGTON, n. c.

Patented Mar. 28,1911

rare.

CHARLES LEE AND JOHN M DUTIilE, OF BUTTE, MONTANA.

JAR-CLOSURE.

Specification of Letters Patent.

To all whom it may concern:

Be it known that we, CHARLES LEE and JOHN M. DUTHIE, citizens of theUnited States, residing at Butte, in the county of Silverbow and Stateof Montana, have invented new and useful Improvements in Jar-Closures,of which the following is a specification.

This invention provides a novel form of closure and securing meanstherefor for ars and analogous wide mouthed receptacles admitting of theclosure being automatically tightened upon its seat and made secure whenmoved to the predetermined position thereby preventing casualdisplacement or loosening.

The invention appertains to the variety of jars and bottle closing meansembodying cooperating cams and lugs whereby when moving the closure inone direction it is at the same time forcibly drawn upon its seat andwhereby upon moving the closure in the opposite direction it is loosenedor moved away from the seat.

The primary intent of the invention is to combine with a closure of thetype aforesaid, unique securing means both for drawing the closure uponits seat and fastening the same when seated.

The invention consists of the novel features, details of constructionand combination of parts which hereinafter will be more particularly setforth, illustrated in the accompanying drawings and pointed out in theappended claims.

Referring to the drawings forming a part of the specification: Figure 1is a side View of the upper portion of a ar or receptacle sealed bymeans of a closure embodying the invention. Fig. 2 is a perspective viewof the cap or closure for the jar or receptacle. Fig. 3 is a perspectiveview of the upper portion of a jar or closure.

Corresponding and like parts are referred to in the followingdescription, and inclicated in all the views of the drawing, by the samereference characters.

The jar or receptacle 1 is provided at opposite points with inclinedgrooves 2 and an intermediate straight groove 3. A notch 1 is formed inthe upper wall of the groove 3 at a medial point. The closure 5 has arms6 pendent therefrom, said arms terminating in horizontal extensions 7which are adapted to enter the grooves 2 and 3. A projection 8 isprovided upon the upper side of each horizontal extension 7 and isadapted to enter the notch 4 so as to secure the closure when firmlyseated. The projections 8 are oppositely inclined to admit of theirriding into or out of the notches 4 upon application of sufficient forceto effect this result. A gasket or packing 9 is interposed between theupper end of the jar or receptacle and the closure to insure theformation of a tight oint.

To seal the ar or receptacle the closure 5 is placed in such position asto admit of the extensions 7 entering the grooves 2 after which theclosure is moved inward, thereby causing the extension 7 to ride in theinclined grooves 2 and draw the closure tight upon the jaw orreceptacle. Then the arms 6 reach a position to bring the projections 8in register with the notches 4, said projections 8 spring into saidnotches and form a lock to prevent backward movement of the closure andthe loosening thereof.

The closure 5 consists of a metal plate having the arms 6 pendent fromopposite edges thereof at a middle point and having a flange 10 at oneend and a flange 11 atthe opposite end, the latter flange beingconsiderably shorter than the flange 10 so as to clear the end of theneck when placing the closure in position and adapted to engage over anedge of the neck of the receptacle and prevent displacement of theclosure. The flange 10 forms a stop to limit the forward movement of theclosure when sliding the same to place upon the receptacle. By havingthe grooves 2 oppositely inclined the closure may be slipped into placefrom either one of two sides of the recepticle. The flanges 10 and 11supplement the action of the projections 8 and notches 4: in retainingthe closure in place when properly positioned.

From the foregoing description, taken in connection with theaccompanying drawing, the advantages of the construction and of themethod of operation will be readily apparent to those skilled in the artto which the invention appertains, and while we have described theprinciple of operation of the invention, together with the device whichwe now consider to be the best embodiment thereof, we desire to have itunderstood that the device shown is merely illustrative, and that suchchanges may be made when desired as are within the scope of the claimshereunto appended.

Patented Mar. 28, 1911.

Having thus described the invention, what is claimed is 1. Incombination, a receptacle having grooves in opposite sides, and havingeach of said grooves comprising oppositely inclined portions and anintermediate straight portion and having a notch in the upper wall ofthe straight portion of each groove, and a closure for the receptaclehaving pendent flanges at opposite ends and having arins pendent fromthe intermediate edges and having said arms formed with inner horizontalextensions provided upon their upper sides with projections to pass intothe said grooves and enter the notches thereof.

2. In combinatioi'i, a receptacle having grooves in opposite sides, eachof said grooves comprising oppositely inclined portions, and a metal capforming a closure, said cap having pendent stops at its front and rearedges and having pendent arms at opposite sides formed with innerhorizontal extensions to enter the grooves in the sides of thereceptacle to draw the closure close upon the receptacle and to retainsaid closure in position thereon.

In testimony whereof we afiix our signatures in presence of twowitnesses.

CHARLES LEE. JOHN M. DUTHIE.

Witnesses:

ALEXANDER LEGGAT, JOHN CAMPBELL.

flopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents Washington, I). C.

